Bug 2510198 (CVE-2026-8763) - CVE-2026-8763 org.bouncycastle/bcprov-jdk15on: org.bouncycastle/bcpkix-jdk15on: Bouncy Castle for Java: Name Constraints bypass via trailing dot in rfc822Name and URI
Summary: CVE-2026-8763 org.bouncycastle/bcprov-jdk15on: org.bouncycastle/bcpkix-jdk15o...
Keywords:
Status: NEW
Alias: CVE-2026-8763
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2519406 2519473 2519474
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-03 02:01 UTC by OSIDB Bzimport
Modified: 2026-11-06 15:32 UTC (History)
100 users (show)

Fixed In Version:
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Environment:
Last Closed:
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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:95887 0 None None None 2026-11-06 15:32:11 UTC

Description OSIDB Bzimport 2026-08-03 02:01:46 UTC 
In Bouncy Castle for Java before 1.85, Name Constraints bypass via trailing dot in rfc822Name and URI. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 1.0.2.7 (1.0.X series), 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series).
Comment 5 Jon Orris 2026-11-06 15:32:06 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 8.1

Via RHSA-2026:95887 https://access.redhat.com/errata/RHSA-2026:95887
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